Archive for the ‘Mobile Networking’ Category

Webbook FAQ

Friday, October 31st, 2008

The support team have asked me to put together some flowchart questions and answers for diagnosing and solving common problems folk have with the webbook. I figured it would be best to post them here to help people solve their own problems and chip in with corrections and other suggestions

I keep getting prompted for a keyring password when connecting to my wireless network

Something is wrong with your gnome keyring file, try deleting the keyring file. Open a terminal and type rm ~/.gnome2/keyrings/login.keyring

My webbook shows the Ubuntu logo on bootup but then goes to a black screen

This has happened to a few people, I am not sure why.

When precisely does it go black? Before login or after login? Do you hear the drums at the login page and the startup sound after the login page?

Try plugging in an external monitor and see if that works (obviously not a solution, but it would tell us something about what is going on) if the external monitor works, what resolution is it running at? 1024×768 or 1024×600?

Go to the recovery root shell from the grub menu and edit or replace the xorg.conf file.

cd /etc/X11
sudo mv xorg.conf xorg.broken
sudo wget http://webbookblog.com/wp-content/uploads/2008/09/xorg.conf

If that fixes things then I would be quite interested in seeing what the xorg.broken file looks like.

I can’t connect to my mobile broadband connection

What dongle are you using? The E160 does not work so well on Hardy Heron, but it does work much better on Intrepid.

What network?

Prepay or Pay as you go?

If it is pay as you go do you have any credit? (try browsing to three.co.uk, if that is the only site that works then you need a topup)

Have you upgraded to Wader 2.3? Open the mobile broadband application and go to help-about and look at the version number. If it is not 2.3 then do an update and restart the webbook.

Check the profile. If you have connected to a different network in the past it is probably using the wrong profile and trying to roam onto a network for which you don’t have roaming privileges. You should never roam on mobile broadband, if you are abroad buy a local pre-pay SIM card – make sure the thousand pound bills happen to other people. The only exception to this is if you have a Three SIM card you can roam onto Orange GPRS as three don’t have their own GPRS network)

If you do have the wrong profile simply delete it and try to connect, it will pop up a new profile with all the correct details filled in.

For more in depth diagnosis start the mobile broadband client and open a terminal window. Type tail -f /tmp/wader.log now plug in the dongle and watch the messages go by as you connect. The messages do actually mean something although they can be a bit cryptic. If someone has an interesting connection issue I would want to see the contents of /tmp/wader.log.

Please totally ignore and do not use the Windows drivers that are on the pseudo CDROM on the dongle. The installer might sort of run under WINE, but it is not going to connect or do anything productive. Just use the Wader mobile broadband client.

Gcompris doesn’t work

start it with alt-F2 gcompris -x we need to get a patch out to fix this.

I have messed up lots of things

Deleting your home directory and starting again might fix things if you have got corrupted firefox/thunderbird/gnome profiles (you can delete them individually, but it can be simplest to just start again)

I have totally hosed my webbook/I accidentally bought one with XP on it

Ask for a USB webbook Linux restore wristvault. This is a 1GB USB drive with a partition image of a clean webbook build. You need to go into the BIOS to change the hard drive order to boot from it, then back into the BIOS when it is finished to re-enable the SATA hard drive.

So what other FAQs should I add to this list? Any problems I have missed?

Some updates and an update

Wednesday, October 29th, 2008

We took the webbooks and some other Elonex laptops, the ONEt and ONE to the Linux Expo Live event in Olympia last week. I should be getting some photos soon, better than the one from my phone at the Woking event. It was not the busiest show but that was OK because we could have a nice long chat with all sorts of interesting people. I had the pleasure of hosting the speaking sessions on the Friday afternoon and Alan Lord hosted the Saturday sessions. All my speakers were great, but a particular highlight was the talk from David Axmark, one of the co-founders of MySQL telling us the story of MySQL and why he left SUN (in short: he doesn’t like working big companies). Lots of people were interested in the webbook but the star attraction for the geek audience was the ONEt with it’s MIPS architecture processor. The software on the ONEt is all very pretty, but not at all how I would have arranged it. With a Debian based system and the apt/dpkg package manager the ONEt could become a really great little computer.

Coming up soon (tomorrow actually) is the Ubuntu 8.10 Intrepid launch party, this will be at Waxy O’Connors in the Dargle bar tomorrow evening, please feel free to join us there.

The other update is a software update to the Wader mobile broadband client. This was released a couple of days ago, if you start the mobile broadband client and go to help-about it should be version 2.3, if it isn’t then do an update and reboot (it should work without the reboot, but just in case . . .). The update adds a cancel button to allow you to interupt it during a connection and also includes a fix mostly for Orange where some SIM cards can take a long time to initialise, this version waits more patiently for the SIM card and network to get it’s act together.

Update:

The party was great, very well attended and my head hurts now.

Feed me

Tuesday, August 5th, 2008

In your Firefox bookmarks bar you will probably have noticed the Latest Headlines menu. This menu updates itself automatically from the BBC website so it always shows the latest stories. This isn’t some special trick just for the BBC. You can add a “latest headlines” button for pretty much any website, including this one and it is really easy to do. Just look out for this symbol in the URL bar when you visit a website. If it lights up then that means the website has what is called an “RSS feed”.

Click the feed symbol and you will see a list of the headlines and a “Subscribe Now” button. Click this and you can then choose whether to add the feed to your bookmarks menu or to the bookmarks toolbar (where the BBC feed is)

Now you can quickly check to see if there are any new articles on your favorite sites without having to open them up. This is particularly handy when using a broadband dongle because it uses much less data to check the feed than to open up a site full of pictures.

But I AM Online!

Sunday, August 3rd, 2008

The webbook comes with the very very latest version of the Firefox web browser, version 3.0. This is a great broswer, but one of it’s fancy new features is a little less than helpful. Firefox can be put into “offline mode”, when in offline mode it won’t try to connect to websites, it will just display web pages stored in the cache. Pretty handy in principal, and this feature has been about for a while. The “great” new feature is that Firefox communicates with the network manager and can now detect when you are connected to the network with a wired or wifi connection. When you are not connected it automatically flips into offline mode. Still sounds like a good feature doesn’t it? Well the downside is that when you are connected to the internet on a 3G dongle (which is kind of the whole point of the webbook) Firefox has a chat with the network manager that goes a bit like this:

FF: “Hey, Network Manager, my user requested a page, am I connected to a wired network?”

NM: “nope, I have no wires plugged in”

FF: “how about wireless? Near any hotspots?”

NM: “nope, not associated with any hotspot right now.”

FF: “OK, I will go to offline mode”

The fact that there is a perfectly good mobile broadband connection sitting there online never comes into the conversation as the mobile broadband bit isn’t the responsibility of the network manager.

So how do we deal with this? Well we really really wanted to fix this before releasing the webbook, but all the fixes we found had nasty side effects that we couldn’t live with and a proper fix was promised in Firefox 3.0.1. Fortunately Firefox 3.0.1 was released to the Ubuntu repositories just a couple of days ago, so if you have done an automatic update recently you should have Firefox 3.0.1. Check by going to Help-About Mozilla Firefox and you should see the version number 3.0.1. If you still have 3.0 then look at the top of the screen for the red “updates available” icon. Click it and follow the prompts to install the available updates.

you might have to restart the webbook, or at least restart Firefox to get the update to take effect.

So now you have the updated firefox, that still doesn’t quite fix the problem. Firefox now has the ability to ignore the network manager, but we still need to tell it to do so. In the URL bar type “about:config”.

If Carlsberg made warning messages they would be like the Firefox one:

here be dragons

So if you promise to be careful, you will see a huge list of settings you can tweak. The one we are interested in is called toolkit.networkmanager.disable. To find this without scrolling through the big list just type “tool” in the filter box and the setting will leap into view.

Double click the setting and it will turn bold (to show it isn’t the default setting) and the value will change from false to true.
changing the property

Now when you start Firefox with the broadband dongle connected you won’t have to turn off offline mode any more.